You should not have to file the Form I-864 when you are filing the Form I-130 petition since the beneficiary is outside the US. However, when CIS approves the I-130 , your next step is to file immigrant visa applications with the NVC. At that time, as the petitioner, you will include the I-864 with the immigrant visa package that is sent to the Embassy by the NVC.
Answered on Mar 11th, 2013 at 8:13 PM